Alnus rugosa

new search

Habitus and growth type

  • Height [m]:
    ?
  • Growth form: shrub
    ?
  • Life form: nanophanerophyte
    ?

Leaf

  • Leaf presence and metamorphosis: leaves present, not modified
    ?
  • Leaf arrangement (phyllotaxis): alternate
    ?
  • Leaf shape: simple – entire
    ?
  • Stipules: present
    ?
  • Petiole: present
    ?
  • Leaf deciduousness in woody plants: winter deciduous
    ?
  • Functional leaf type in woody plants: broad deciduous or semi-deciduous
    ?

Flower

  • Flowering period [month]: March–April
    ?
  • Flower colour: yellow-green
    ?
  • Perianth type: homochlamydeous, reduced or absent
    ?
  • Perianth fusion: reduced
    ?
  • Inflorescence type: amentum e floribus masculis, strobilus
    ?
  • Generative reproduction type: allogamy
    ?

Fruit, seed and dispersal

  • Fruit type: dry fruit – achene/cypsela/samara
    ?
  • Myrmecochory: non-myrmecochorous (b)
    ?

Trophic mode

  • Parasitism and mycoheterotrophy: autotrophic
    ?
  • Carnivory: non-carnivorous
    ?
  • Symbiotic nitrogen fixation: symbiosis with Frankia
    ?

Taxon origin

  • Origin in the Czech Republic: neophyte
    ?
  • Invasion status: casual
    ?
  • Geographic origin: North America
    ?
  • Year of the first record in the wild: 1872
    ?
  • Period of introduction: Late Modern Period (1800–1950)
    ?
  • Introduction pathway: intentional – forest, intentional – landscaping
    ?

Habitat and sociology

  • Affinity to the forest environment

    ?
  • Affinity to the forest environment in Thermophyticum: 0 – taxon that does not spontaneously occur in Czech forests
  • Affinity to the forest environment in Mesophyticum and Oreophyticum: 0 – taxon that does not spontaneously occur in Czech forests

Threats and protection

  • Red List 2017 (national categories): taxon is not on the Red List
    ?
  • Red List 2017 (IUCN categories): LC(NA) – least concern (taxon is not on the Red List)
    ?
  • Legal protection: not protected by law
    ?
This web page uses for the attendance analysis cookies. By using this web you agree with this. More info.